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Commit 06d9f56f authored by Rob Clark's avatar Rob Clark Committed by Sean Paul
Browse files

drm/msm: module param to dump state on error irq 



Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
Signed-off-by: default avatarSean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1478358492-30738-8-git-send-email-robdclark@gmail.com
parent dd701ae9

drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c

+10 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ 
 * this program.  If not, see <http://www.gnu.org/licenses/>.

 */



#include <drm/drm_print.h>



#include "msm_drv.h"

#include "mdp4_kms.h"
@@ -29,7 +30,16 @@ void mdp4_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask, 


static void mdp4_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus)

{

	struct mdp4_kms *mdp4_kms = container_of(irq, struct mdp4_kms, error_handler);

	static DEFINE_RATELIMIT_STATE(rs, 5*HZ, 1);

	extern bool dumpstate;



	DRM_ERROR_RATELIMITED("errors: %08x\n", irqstatus);



	if (dumpstate && __ratelimit(&rs)) {

		struct drm_printer p = drm_info_printer(mdp4_kms->dev->dev);

		drm_state_dump(mdp4_kms->dev, &p);

	}

}



void mdp4_irq_preinstall(struct msm_kms *kms)

drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c

+11 −0
Original line number Diff line number Diff line
@@ -17,6 +17,8 @@ 


#include <linux/irq.h>



#include <drm/drm_print.h>



#include "msm_drv.h"

#include "mdp5_kms.h"
@@ -30,7 +32,16 @@ void mdp5_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask, 


static void mdp5_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus)

{

	struct mdp5_kms *mdp5_kms = container_of(irq, struct mdp5_kms, error_handler);

	static DEFINE_RATELIMIT_STATE(rs, 5*HZ, 1);

	extern bool dumpstate;



	DRM_ERROR_RATELIMITED("errors: %08x\n", irqstatus);



	if (dumpstate && __ratelimit(&rs)) {

		struct drm_printer p = drm_info_printer(mdp5_kms->dev->dev);

		drm_state_dump(mdp5_kms->dev, &p);

	}

}



void mdp5_irq_preinstall(struct msm_kms *kms)

drivers/gpu/drm/msm/msm_drv.c

+4 −0
Original line number Diff line number Diff line
@@ -79,6 +79,10 @@ static char *vram = "16m"; 
MODULE_PARM_DESC(vram, "Configure VRAM size (for devices without IOMMU/GPUMMU)");

module_param(vram, charp, 0);



bool dumpstate = false;

MODULE_PARM_DESC(dumpstate, "Dump KMS state on errors");

module_param(dumpstate, bool, 0600);



/*

 * Util/helpers:

 */